Kattel, P., R. Chalise, A. Adhikari, and R. Khanal. “Pollution Threat by Face Mask After COVID-19 in Nepal”. Journal of Nepal Physical Society 9, no. 1 (August 25, 2023): 116–121. Accessed April 27, 2025. https://nepjol.info./index.php/JNPhysSoc/article/view/57745.